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Kubernetes Survey Results Not so long ago, I created a survey to understand how people manage their Kubernetes clusters. I got more than a hundred responses from Telegram, Reddit, Twitter, and DOU, 102 to be precise. Now, I am ready to share it with you! You can find all the raw data via this link. This text is also available in Ukrainian. A backstory (skippable content) After, I wrote the article about Kubernetes backups - Why backup Kubernetes?, I got a few questions about the cluster topology we use. Especially on the “cluster as cattle” concept and technical struggles associated with it. I started writing a follow-up article on that topic, but then I realized that my view is limited by the experience at just a few companies. Thus, I decided to ask people about how they manage their clusters. So, here we are. ...

This is the second part of a series of articles regarding Kubernetes backups. You can find the first part about Velero tool here. Why Backup Kubernetes? In the previous part I provided a brief overview of the backup & restore tool for Kubernetes called Velero. Now, I would like to talk, why backup your cluster at all? What makes a cluster? A typical production cluster has a three-layer structure. There are Kubernetes components themselves. There are plugins that ease your operations e.g. ingress controllers, admission webhooks, etc. I will refer to them as “core plugins” from now on. At the end of the day, there are applications - actual workloads that make your company’s money. ...

Blog Redesign I have redesigned my blog recently. Well, not really redesigned, rather applied a Hugo theme, that I liked the most. This is how it was before: And this is how it looks now: Why so? Supporting a theme is hard. I’m not a web developer. I have some idea about CSS and I can use a bunch of examples on the Web to create something on my own, but it takes a lot of effort. And this is not the effort I would like to put. ...

I briefly mentioned this issue in a podcast recently. So, if you understand Russian, you’re welcome to listen to it. However, after I heard the news that Apache Mesos is going to be moved to Attic, I decided to write this post. Here I want to wrap up my thoughts and opinions on what’s going on on the infrastructure management scene recently and how we ended up like this. And also why I believe that things like Nomad and ECS are not quite a competition to Kubernetes nowadays. ...

[Somewhat Long] Intro If you have a lot of Zoom calls, which is something very common these days, you need to have a good sound. Believe me. Even if you only talk to your colleagues at occasional business meetings. At the beginning of the WFH era, I thought that getting a good webcam is more important. And it looks like a lot of people share that feeling. At least, it’s still hard to buy a Logitech webcam on the market. However, in reality, it’s not that important. You may even turn off your video sometimes. I do it all the time if there are more than 5 people in a meeting, or when I know that this meeting will take more than 30 minutes. ...